Spatial-frequency-code three-dimensional index modulation wireless communication method

Abstract

The invention requests to protect a spatial-frequency-code three-dimensional index modulation wireless communication method, which belongs to the technical field of high-speed wireless communication,and comprises the steps of: at the transmitting end, comprising: generating information bits and dividing the information bits into the following four parts by serial-parallel conversion, which are respectively a modulation part GMod, an antenna index part GAnt, a PN code index part GCode, and a subcarrier index part GSub; a step of index modulation and symbol modulation, wherein the index modulation includes antenna index modulation, spreading code index modulation, and subcarrier index modulation; and a step of modulation symbol spread spectrum transmission; and at the receiving end, comprising: performing signal detection and demodulation, including detection and demodulation of the activated subcarrier, the activated antenna, and the activated spreading code and modulation symbol.

Description

technical field [0001] The invention belongs to the technical field of high-speed wireless communication, and the related technologies include multiple-input multiple-output space modulation, code index modulation, subcarrier index modulation and direct sequence spread spectrum communication. Background technique [0002] In recent years, as people's demand for high-speed data transmission rate and frequency band utilization is getting higher and higher, wireless communication technology is also developing rapidly. High-speed data transmission rate and reliable transmission quality have become the necessary prerequisites for the development of wireless communication. Limited spectrum resources can no longer meet the rapidly growing needs of users. It is against this background that spread spectrum modulation and OFDM , large-scale multiple-input multiple-output and other modulation techniques were proposed. And it has been extensively researched. At present, these technolog...

AI Technical Summary

Problems solved by technology

At present, there are not many research teams that can consult two-dimensional index modulation. The advantage of two-dimensional index modulation is that the number of information bits transmitted by teleportation is increased through two index methods, so it has more advantages in terms of energy efficiency and spectrum efficiency; The disadvantage is that the demodulation complexity at the receiving end is large, and it is difficult to obtain channel state information through precoding technology

Since there are few two-dimensional index modulations at present, there is no research on three-dimensional index modulation that combines antenna index, code index and subcarrier index.

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